Door stop



FIG. 1 is a left side elevational view of a door stop showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevational view of a second embodiment of the design of FIG. 1, the only difference residing in the open rear surface;

FIG. 7 is a rear perspective view of FIG. 6. 

The ornamental design for a door stop, substantially as shown and described. 